Fixed read problem which caused some fields not to be anonymized.
Revert "Fixed read problem which caused some fields not to be anonymized."

This reverts commit efeef6b2568da1af13f5a74a393577ff18ba5668.
Trying to fix git problem
Support for DICOM files that do not have an SOPInstanceUID.  Workaround
is to make a random, new, unique one when they are read in.  This gets
around 'bad' DICOM files that would otherwise be unreadable, though can
cause connection problems during anonymization.

Also support for reading in multiple files with the same SOPInstanceUID
and SeriesInstanceUID, if they are in different directories.  This is
somewhat required for editing files.

Also did some work to support editing, but it is not complete.